Pump handle structure



Nov.- 23, 1937. V. A. THOMAS 2,099,832

PUMP HANDLE STRUCTURE Filed July 10, 1936 lnvenlor V, A Thomas g wwmm A Home s Patented Nov. 23, 1937 UNITED STATES PATENT OFFICE 3 Claims.

My invention relates generally to operating handle structure for manually operating pumps, and an important object of the invention is to provide a more easily operated, more durable, and

more efficient arrangement of this character.

Other important objects of my invention will be apparent from a reading of the following description taken in connection with the drawing, wherein for purposes of illustration I have shown a preferred embodiment of my invention.

In the drawing:-

Figure l is a general side elevational view of an embodiment of the invention showing the same applied to a pump.

l5 Figure 2 is a longitudinal sectional View taken through Figure 1 approximately on the line 22.

Figure 3 is a transverse vertical sectional view taken through Figure 2.

Figure 4 is a longitudinal sectional view.

Figure 5 is a transverse vertical sectional view taken through Figure 1 approximately on the line 55 and looking toward the right in the direction of the arrows.

Figure 6 is an elevational view of one end of the front handle per se.

Referring in detail to the drawing, the numeral 5 generally designates a conventional type of pump casing in which works a suction piston 6 which is mounted on a cage 1 which has adjustably connected thereto by means generally designated 8, the lower end of the pump rod 9 whose upper end is bifurcated to provide the furcations Ill and H which journal a fork or pin l2 on which is arranged and clamped between the furcations H and I2 the disk body l3 which includes a race on its periphery holding the ball bearings l4 and a rotatable annulus l5 provided on its radially inward face with a race confining the ball bearings I4.

Clamped around the periphery of the annulus I5 are the arms I! and 18 of the pump handle per se which is generally designated [9 and which is tubular in form and assumes the general outline shown in Figure 1.

At the fulcrum point of the handle IS an opening 20 is provided in the bottom of the tubular handle as shown in Figures 2 and 3 and mounted in place therein is a ball bearing structure which is generally designated 2| and which includes the annulus 22 fastened to the handle and the body 23 which is held to the annulus 22 by the ball bearings 24. The disk or body 23 has an axial opening 25 which receives a pin 26 on the pump casing bracket 21 whereby the handle I9 is fulcrumed on the pump casing. As shown in Figure 2 the bearing structure just described projects from the bottom of the handle l9 through the opening 20.

The foregoing manner of connecting the ball bearing structures with the inner end and with 5 the fulcrum point of the handle and the tubular formation of the handle, made it possible to construct the arrangements of the invention cheaply and efficiently, and produce mechanically superior arrangements. It is obvious that the use 10 of ball bearings in the particular manner set forth lengthens the life of the pump structure, renders the same more nearly noiseless, and facilitates operation of the handle for pumping purposes. 15

Although I have shown and described herein a preferred embodiment of my invention, it is to be definitely understood that I do not desire to limit the application of the invention thereto, and any change or changes may be made in the 20 materials, and in the structure and arrangement of the parts, within the spirit of the invention and the scope of the subjoined claims.

What is claimed is:-

1. In combination, a support, a hollow pump 5 handle, a ball bearing including an outer race mounted in an opening formed in the underside of said pump handle intermediate its ends, said ball bearing further comprising an inner race and balls disposed between the inner and outer 30 races, said bearing having a portion depending below said pump handle, a pivot on said support supportably traversing said inner race and mounting said pump handle on said support.

2. In combination, a support, .a hollow pump 35 handle pivoted intermediate its ends on said support, a dependent pump plunger, a ball bearing composed of an outer race, an inner race, and balls disposed between the inner and outer races, one end of said hollow pump handle being 40 formed with opening means receiving and securing said outer race, means on said pump handle embracing and fastening said outer race in place, and a transverse element on the upper end of said dependent pump plunger traversing said in- 45 ner race and operatively connecting said pump plunger to said pump handle.

3. In combination a support, a hollow pump handle and a dependent pump plunger, said hollow pump handle being formed in its bottom with 50 a first opening intermediate its ends, and with a second opening at the pump plunger end, a first ball bearing mounted in said first opening and comprising a stationary outer race fastened in said first opening, a relatively rotatable inner 55 able inner race, and elie disposed between and. connecting the outer and inner races, and means operatively connecting the inner race of said second ball bearing to the upper end 01 said pump plunger.

VALLEY A. THOMAS. 

